4.6.2. myisam_ftdump — Display Full-Text Index information

myisam_ftdump displays information about FULLTEXT
indexes in MyISAM tables. It reads the MyISAM index
file directly, so it must be run on the server host where the table is located. Before using myisam_ftdump, be sure to issue a FLUSH
TABLES statement first if the server is running.

myisam_ftdump scans and dumps the entire index, which is not
particularly fast. On the other hand, the distribution of words changes infrequently, so it need not be run
often.

The tbl_name argument should be the name of a MyISAM
table. You can also specify a table by naming its index file (the file with the .MYI suffix). If you do not invoke myisam_ftdump in the directory where the table files are
located, the table or index file name must be preceded by the path name to the table's database directory. Index
numbers begin with 0.

Example: Suppose that the test database contains a table named mytexttable that has the following definition:

The index on id is index 0 and the FULLTEXT index on
txt is index 1. If your working directory is the test
database directory, invoke myisam_ftdump as follows:

shell> myisam_ftdump mytexttable
1

If the path name to the test database directory is /usr/local/mysql/data/test,
you can also specify the table name argument using that path name. This is useful if you do not invoke myisam_ftdump
in the database directory:

shell> myisam_ftdump
/usr/local/mysql/data/test/mytexttable 1

You can use myisam_ftdump
to generate a list of index entries in order of frequency of occurrence like this: